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path: root/internal/fusefrontend/node.go
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2023-05-17fusefrontend: implement our own Access()Jakob Unterwurzacher
Not having Access() means go-fuse emulates it by looking at Getattr(). This works fine most of the time, but breaks down on sshfs, where sshfs-benchmark.bash shows this: gocryptfs/tests$ ./sshfs-benchmark.bash nuetzlich.net working directory: /tmp/sshfs-benchmark.bash.JQC sshfs mounted: nuetzlich.net:/tmp -> sshfs.mnt gocryptfs mounted: sshfs.mnt/sshfs-benchmark.bash.Wrz/gocryptfs.crypt -> gocryptfs.mnt sshfs-benchmark.bash: sshfs gocryptfs-on-sshfs git init 3.98 6.80 rsync 7.71 10.84 rm -R 4.30rm: descend into write-protected directory 'gocryptfs.mnt/git1'? The go-fuse emulation gets it wrong here because sshfs reports permissions but does not enforce them. Implement it ourselves properly.
2023-03-29fusefrontent: report correct size on hard link creationJakob Unterwurzacher
And add a test for it. Fixes https://github.com/rfjakob/gocryptfs/issues/724
2022-01-22fusefrontend: support RENAME_WHITEOUT, RENAME_EXCHANGEJakob Unterwurzacher
Both new internal test and xfstests generic/013 are happy. https://github.com/rfjakob/gocryptfs/issues/641
2022-01-10fusefrontend: fix -force_owner not affecting MKNODJakob Unterwurzacher
Fixes https://github.com/rfjakob/gocryptfs/issues/629
2021-10-15fusefrontend: honor ForceOwner for LOOKUP and CREATE operationsCharles Duffy
2021-08-23go mod: declare module version v2Jakob Unterwurzacher
Our git version is v2+ for some time now, but go.mod still declared v1. Hopefully making both match makes https://pkg.go.dev/github.com/rfjakob/gocryptfs/v2 work. All the import paths have been fixed like this: find . -name \*.go | xargs sed -i s%github.com/rfjakob/gocryptfs/%github.com/rfjakob/gocryptfs/v2/%
2021-08-19golangci-lint: fix issues found by gosimpleJakob Unterwurzacher
Everything except the if err2.Err == syscall.EOPNOTSUPP case. Gets too confusing when collapsed into a single line. Issues were: $ golangci-lint run --disable-all --enable gosimple mount.go:473:2: S1008: should use 'return strings.HasPrefix(v, "fusermount version")' instead of 'if strings.HasPrefix(v, "fusermount version") { return true }; return false' (gosimple) if strings.HasPrefix(v, "fusermount version") { ^ cli_args.go:258:5: S1002: should omit comparison to bool constant, can be simplified to `args.forcedecode` (gosimple) if args.forcedecode == true { ^ cli_args.go:263:6: S1002: should omit comparison to bool constant, can be simplified to `args.aessiv` (gosimple) if args.aessiv == true { ^ cli_args.go:267:6: S1002: should omit comparison to bool constant, can be simplified to `args.reverse` (gosimple) if args.reverse == true { ^ internal/stupidgcm/stupidgcm.go:227:6: S1002: should omit comparison to bool constant, can be simplified to `g.forceDecode` (gosimple) if g.forceDecode == true { ^ gocryptfs-xray/xray_tests/xray_test.go:23:5: S1004: should use !bytes.Equal(out, expected) instead (gosimple) if bytes.Compare(out, expected) != 0 { ^ gocryptfs-xray/xray_tests/xray_test.go:40:5: S1004: should use !bytes.Equal(out, expected) instead (gosimple) if bytes.Compare(out, expected) != 0 { ^ gocryptfs-xray/paths_ctlsock.go:34:20: S1002: should omit comparison to bool constant, can be simplified to `!eof` (gosimple) for eof := false; eof == false; line++ { ^ tests/reverse/xattr_test.go:19:2: S1008: should use 'return err2.Err != syscall.EOPNOTSUPP' instead of 'if err2.Err == syscall.EOPNOTSUPP { return false }; return true' (gosimple) if err2.Err == syscall.EOPNOTSUPP { ^ internal/fusefrontend/node.go:459:45: S1002: should omit comparison to bool constant, can be simplified to `!nameFileAlreadyThere` (gosimple) if nametransform.IsLongContent(cName2) && nameFileAlreadyThere == false { ^ tests/xattr/xattr_integration_test.go:221:2: S1008: should use 'return err2.Err != syscall.EOPNOTSUPP' instead of 'if err2.Err == syscall.EOPNOTSUPP { return false }; return true' (gosimple) if err2.Err == syscall.EOPNOTSUPP { ^ tests/test_helpers/helpers.go:338:19: S1002: should omit comparison to bool constant, can be simplified to `open` (gosimple) if err != nil && open == true { ^ tests/matrix/concurrency_test.go:121:7: S1004: should use !bytes.Equal(buf, content) instead (gosimple) if bytes.Compare(buf, content) != 0 { ^
2021-08-18Fix issues found by ineffassignJakob Unterwurzacher
gocryptfs$ ineffassign ./... /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/configfile/config_file.go:243:2: ineffectual assignment to scryptHash /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/configfile/config_file.go:272:2: ineffectual assignment to scryptHash /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/fusefrontend/file.go:285:3: ineffectual assignment to fileID /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/fusefrontend/node.go:367:3: ineffectual assignment to err /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/fusefrontend/node_open_create.go:68:2: ineffectual assignment to fd /home/jakob/go/src/github.com/rfjakob/gocryptfs/mount.go:308:2: ineffectual assignment to masterkey /home/jakob/go/src/github.com/rfjakob/gocryptfs/gocryptfs-xray/xray_main.go:156:13: ineffectual assignment to err /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/fusefrontend/prepare_syscall_test.go:65:16: ineffectual assignment to errno /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/syscallcompat/open_nofollow_test.go:34:2: ineffectual assignment to fd /home/jakob/go/src/github.com/rfjakob/gocryptfs/tests/defaults/acl_test.go:111:6: ineffectual assignment to err /home/jakob/go/src/github.com/rfjakob/gocryptfs/tests/defaults/acl_test.go:181:2: ineffectual assignment to sz /home/jakob/go/src/github.com/rfjakob/gocryptfs/tests/defaults/acl_test.go:198:2: ineffectual assignment to sz /home/jakob/go/src/github.com/rfjakob/gocryptfs/tests/defaults/main_test.go:365:8: ineffectual assignment to err /home/jakob/go/src/github.com/rfjakob/gocryptfs/tests/xattr/xattr_fd_test.go:30:6: ineffectual assignment to err /home/jakob/go/src/github.com/rfjakob/gocryptfs/tests/xattr/xattr_fd_test.go:66:6: ineffectual assignment to err
2021-07-31fusefrontend: -sharedstorage: present stable inode numbersJakob Unterwurzacher
Use the Gen field (inode generation) to distinguish hard links while passing the real inode numbers to userspace. Fixes https://github.com/rfjakob/gocryptfs/issues/584
2021-07-29fusefrontend: implement fsync on directoriesJakob Unterwurzacher
Fixes https://github.com/rfjakob/gocryptfs/issues/587
2021-06-25fusefrontend: implement recursive diriv cachingJakob Unterwurzacher
The new contrib/maxlen.bash showed that we have exponential runtime with respect to directory depth. The new recursive diriv caching is a lot smarter as it caches intermediate lookups. maxlen.bash now completes in a few seconds. xfstests results same as https://github.com/rfjakob/fuse-xfstests/blob/2d158e4c82be85c15269af77498e353f928f4fab/screenlog.0 : Failures: generic/035 generic/062 generic/080 generic/093 generic/099 generic/215 generic/285 generic/319 generic/426 generic/444 generic/467 generic/477 generic/523 Failed 13 of 580 tests benchmark.bash results are identical: $ ./benchmark.bash Testing gocryptfs at /tmp/benchmark.bash.BdQ: gocryptfs v2.0.1-17-g6b09bc0; go-fuse v2.1.1-0.20210611132105-24a1dfe6b4f8; 2021-06-25 go1.16.5 linux/amd64 /tmp/benchmark.bash.BdQ.mnt is a mountpoint WRITE: 262144000 bytes (262 MB, 250 MiB) copied, 0,4821 s, 544 MB/s READ: 262144000 bytes (262 MB, 250 MiB) copied, 0,266061 s, 985 MB/s UNTAR: 8,280 MD5: 4,564 LS: 1,745 RM: 2,244
2021-06-06fusefronted: report plaintext size on symlink creationJakob Unterwurzacher
gocryptfs 2.0 introduced the regression that the size reported at symlink creation was the ciphertext size, which is wrong. Report the plaintext size. Fixes https://github.com/rfjakob/gocryptfs/issues/574
2021-06-05syscallcompat: drop obsolete wrappersJakob Unterwurzacher
These are now available cross-platform in the unix package.
2021-05-15fusefrontend: fix RENAME_NOREPLACE darwin build failureJakob Unterwurzacher
Error was: internal/fusefrontend/node.go:371:2: duplicate case syscallcompat.RENAME_NOREPLACE (value 0) in switch previous case at internal/fusefrontend/node.go:368:7 Rewrite using "if"s instead.
2021-05-08fusefrontend: avoid duplicate const definitionJakob Unterwurzacher
RENAME_NOREPLACE is already defined in syscallcompat.
2021-05-08fusefrontend: reject broken RENAME_EXCHANGE and RENAME_WHITEOUTJakob Unterwurzacher
Discovered by xfstests generic/013: or implementation for RENAME_EXCHANGE and RENAME_WHITEOUT is incomplete. Reject the flags so that the caller retries with regular rename.
2021-03-21fusefronted: move Create() and Open() to new fileJakob Unterwurzacher
And deduplicate the code a little.
2021-03-21fusefrontend: -sharedstorage: fix TestRmwRace failureJakob Unterwurzacher
The Open() and Create() paths used different inode numbers, which broke openfiletable locking against concurred readers.
2021-01-10nametransform: make `gocryptfs.diriv` and `gocryptfs.xxx.name` files ↵Jakob Unterwurzacher
world-readable Make `gocryptfs.diriv` and `gocryptfs.xxx.name` files world-readable to make encrypted backups easier when mounting via fstab. Having the files follow chmod/chown of their parent does not seem to be worth the hassle. The content of the diriv files is not secret, and both diriv and name files are protected by the perms of the parent dir. Fixes https://github.com/rfjakob/gocryptfs/issues/539
2020-12-20main: add "-kernel_cache" flaggmd20
This option is similar to fuse(8) kernel_cache Verified using vmtouch. Without -kernel_cache: $ dd if=/dev/zero of=foo bs=1M count=10 ; vmtouch -t foo ; vmtouch foo 10+0 records in 10+0 records out 10485760 bytes (10 MB, 10 MiB) copied, 0,0242321 s, 433 MB/s Files: 1 Directories: 0 Touched Pages: 2560 (10M) Elapsed: 0.011159 seconds Files: 1 Directories: 0 Resident Pages: 0/2560 0/10M 0% Elapsed: 0.000993 seconds With -kernel_cache: $ dd if=/dev/zero of=foo bs=1M count=10 ; vmtouch -t foo ; vmtouch foo 10+0 records in 10+0 records out 10485760 bytes (10 MB, 10 MiB) copied, 0,0244015 s, 430 MB/s Files: 1 Directories: 0 Touched Pages: 2560 (10M) Elapsed: 0.011564 seconds Files: 1 Directories: 0 Resident Pages: 2560/2560 10M/10M 100% Elapsed: 0.000369 seconds
2020-09-09v2api: add Darwin xattr supportJakob Unterwurzacher
2020-08-16v2api: rename "File2" to just "File"Jakob Unterwurzacher
Rename the symbols and the files.
2020-08-01v2api: move helpers from node.go to node_helpers.goJakob Unterwurzacher
2020-07-26v2api: fix missing size translation in LookupJakob Unterwurzacher
2020-07-19v2api: Lookup: use newChild() helperJakob Unterwurzacher
2020-07-18v2api: Node: make Path() publicJakob Unterwurzacher
Helpful for fsck.
2020-07-12v2api: Setattr: fill `out` structureJakob Unterwurzacher
2020-07-12v2api: fix MkfifoJakob Unterwurzacher
2020-07-12v2api: properly implement Node.SetattrJakob Unterwurzacher
We used to always open a *File2 and letting the *File2 handle Setattr. This does not work it we cannot open the file! Before: $ go test 2020/07/12 20:14:57 writer: Write/Writev failed, err: 2=no such file or directory. opcode: INTERRUPT 2020/07/12 20:14:57 writer: Write/Writev failed, err: 2=no such file or directory. opcode: INTERRUPT --- FAIL: TestLchown (0.00s) matrix_test.go:634: lchown /tmp/gocryptfs-test-parent-1026/014500839/default-plain/symlink: too many levels of symbolic links touch: setting times of '/tmp/gocryptfs-test-parent-1026/014500839/default-plain/utimesnano_symlink': Too many levels of symbolic links --- FAIL: TestUtimesNanoSymlink (0.00s) matrix_test.go:655: exit status 1 --- FAIL: TestMkfifo (0.00s) matrix_test.go:755: file exists --- FAIL: TestMagicNames (0.00s) matrix_test.go:773: Testing n="gocryptfs.longname.QhUr5d9FHerwEs--muUs6_80cy6JRp89c1otLwp92Cs" matrix_test.go:773: Testing n="gocryptfs.diriv" matrix_test.go:815: open /tmp/gocryptfs-test-parent-1026/014500839/default-plain/linktarget: permission denied --- FAIL: TestChmod (0.00s) matrix_test.go:840: chmod 444 -> 000 failed: permission denied matrix_test.go:840: chmod 444 -> 111 failed: permission denied matrix_test.go:840: chmod 444 -> 123 failed: permission denied matrix_test.go:840: chmod 444 -> 321 failed: permission denied FAIL exit status 1 FAIL github.com/rfjakob/gocryptfs/tests/matrix 0.790s After: $ go test --- FAIL: TestMkfifo (0.00s) matrix_test.go:755: file exists --- FAIL: TestMagicNames (0.00s) matrix_test.go:773: Testing n="gocryptfs.longname.QhUr5d9FHerwEs--muUs6_80cy6JRp89c1otLwp92Cs" matrix_test.go:773: Testing n="gocryptfs.diriv" matrix_test.go:815: open /tmp/gocryptfs-test-parent-1026/501766059/default-plain/linktarget: permission denied --- FAIL: TestChmod (0.00s) matrix_test.go:849: modeHave 0644 != modeWant 0 FAIL exit status 1 FAIL github.com/rfjakob/gocryptfs/tests/matrix 0.787s
2020-07-12v2api: Getattr: use file handle if passedJakob Unterwurzacher
2020-07-12v2api: Getattr: fix file sizeJakob Unterwurzacher
2020-07-12v2api: fix Rename trying to overwrite itselfJakob Unterwurzacher
We used to do this [pid 99182] renameat2(14, "Y_4DAxKvj1QnXmJx2AkrKA", 15, ".", RENAME_NOREPLACE <unfinished ...> which was not the intention.
2020-07-12v2api: File2: implement Release, Read, Write, Fsync, Flush, AllocateJakob Unterwurzacher
Fortunately, this just means fixing up the function signatures.
2020-07-11v2api: fix RootNode castJakob Unterwurzacher
2020-07-11v2api: implement RenameJakob Unterwurzacher
2020-07-11v2api: remove OpenatUserCtx, MknodatUserCtx helpersJakob Unterwurzacher
Instead, use the new toFuseCtx() function introduced in an earlier commit.
2020-07-11v2api: implement SymlinkJakob Unterwurzacher
2020-07-11v2api: implement LinkJakob Unterwurzacher
2020-07-11v2api: implement MknodJakob Unterwurzacher
2020-07-11v2api: implement StatfsJakob Unterwurzacher
2020-07-05v2api: implement SetattrJakob Unterwurzacher
2020-07-04v2api: implement Open()Jakob Unterwurzacher
2020-07-04v2api: add prepareAtSyscall helperJakob Unterwurzacher
2020-07-04v2api: implement ReadlinkJakob Unterwurzacher
2020-06-21v2api: implement UnlinkJakob Unterwurzacher
2020-06-21v2api: implement CreateJakob Unterwurzacher
2020-06-21v2api: collect RootNode code in root_node.goJakob Unterwurzacher
2020-06-21v2api: implement GetAttr and ReaddirJakob Unterwurzacher
2020-06-21v2api: implement Lookup()Jakob Unterwurzacher
Compiles, but untested otherwise. No caching.
2020-06-21v2api (go-fuse v2 api): initial noop implementationJakob Unterwurzacher
Compiles and mounts but does nothing useful.
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-31 04:15:03 +0000